7-Foot Custom Wiring Extension Harnesses (20-26 Sierra 2500 HD)Find parts that fit my vehicle

Versatile Wiring Solution. The 7-Foot Custom Wiring Extension Harness provides a convenient electrical connection point in the truck bed, while preserving access to the existing rear trailer socket. Essential for drivers who frequently switch between receiver hitches and specialty 5th wheel or gooseneck trailers, this harness simplifies complex wiring needs and ensures reliable trailer lighting and power functionality.

Construction and Appearance. Built with durable wiring protected by a slit loom, this harness features spring-loaded dust covers on the connectors to prevent contamination when not in use. The assembly incorporates a right-angle plug design for smooth installation and a long-lasting blank finish suited for rugged use in harsh environments.

Installation. Installation requires a factory cutout in the truck bed and drilling is necessary to accommodate the harness. The plug-and-play design eliminates the need for cutting or splicing wires. Due to the 7-foot cable length, excess wiring may need to be carefully managed to ensure a clean, secure fit. Moderate mechanical skills are recommended to complete installation successfully.

Warranty. This product includes a one-year limited warranty against defects in materials and workmanship.

Application. Specifically designed and compatible with 2020-2026 Sierra 2500 HD models, ensuring a perfect fit and full functionality for trucks within this year range.

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